#ifndef GIFTSENDERCONCRETE_H__
#define GIFTSENDERCONCRETE_H__

//include header
#include "GiftSender.h"

//using namespace
using namespace std;


namespace npProxy
{
    //class forward declaration
    
    class GiftSenderConcrete : public GiftSender
        //,public covariant
    {
        //friend
        
        //embedded type
        
        //class skeleton
        public: GiftSenderConcrete();
        public: GiftSenderConcrete(const GiftSenderConcrete& cpy);
        public: GiftSenderConcrete(GiftSenderConcrete&& mov) noexcept;
        public: virtual ~GiftSenderConcrete();
        public: GiftSenderConcrete& operator=(const GiftSenderConcrete& asn);
        public: GiftSenderConcrete& operator=(GiftSenderConcrete&& mva) noexcept;
        public: virtual shared_ptr<covariant> clone() const throw();
        public: virtual shared_ptr<covariant> steal(void* sft=nullptr) throw();

        //other constructors
        public: explicit GiftSenderConcrete(weak_ptr<Girl> girl);
        
        //public methods
        public: virtual void sendDolls() throw(ErrorEnum);
        public: virtual void sendFollows() throw(ErrorEnum);
        public: virtual void sendChocolates() throw(ErrorEnum);
        
        //protected methods
        
        //private methods
        
        //protected data
        /* 类中不应该存在protected 访问级别的data
         * 要么私有，要么私有而后给出protected 访问级别的methods !!! */
        
        //private data
        /* 类中不应存在指针类型成员，
         * 取而代之，应使用智能指针予以包裹
         * 使用shared_ptr表示类拥有指针指向对象
         * 使用weak_ptr表示类仅可以使用指针指向对象
         * 智能指针对指针成员的封装和使用准则：
         * 1.类对象不允许使用unique_ptr包裹
         * 2.推敲业务逻辑，如果是共享的(share_ptr)，则尽可能少的共享指针对象
         * 3.如果从业务逻辑中发现类仅仅使用某个指针所指对象，则务必使用weak_ptr包裹指针，
         *   以此切实地描述这种使用而不拥有的关系
         * 4.类成员weak_ptr<*> ths，由其产生的，包裹this指针的，shared_ptr只允许在局部使用 */
        
        //static part
        
        //others
    };

    //inline functions
    inline GiftSenderConcrete::GiftSenderConcrete() : GiftSender()
    {
        
    }
    
    inline GiftSenderConcrete::GiftSenderConcrete(const GiftSenderConcrete& cpy) : GiftSender(cpy)
    {
        
    }
    
    inline GiftSenderConcrete::GiftSenderConcrete(GiftSenderConcrete&& mov) noexcept : GiftSender(move(mov))
    {
        
    }
    
    inline GiftSenderConcrete::~GiftSenderConcrete()
    {
        
    }
    
    inline GiftSenderConcrete& GiftSenderConcrete::operator=(const GiftSenderConcrete& asn)
    {
        if (this == &asn)
        {
            return *this;
        }
        else
        {
            GiftSender::operator=(asn);
            
            //To do
            
            return *this;
        }
    }
    
    inline GiftSenderConcrete& GiftSenderConcrete::operator=(GiftSenderConcrete&& mva) noexcept
    {
        if (this == &mva)
        {
            return *this;
        }
        else
        {
            GiftSender::operator=(move(mva));
            
            //To do
            
            return *this;
        }
    }
    
    inline shared_ptr<covariant> GiftSenderConcrete::clone() const throw()
    {
        //new an instance if not abstract.
        return shared_ptr<GiftSenderConcrete>(new GiftSenderConcrete(*this));
    }
    
    inline shared_ptr<covariant> GiftSenderConcrete::steal(void* sft) throw()
    {
        GiftSenderConcrete* shf = static_cast<GiftSenderConcrete*>(sft);
        if (this == shf)
        {
            return shared_ptr<covariant>();
        }
        else
        {
            shared_ptr<GiftSenderConcrete> ret;
            if (!shf)
            {
                //new an instance if not abstract.
                ret = shared_ptr<GiftSenderConcrete>(new GiftSenderConcrete(*this));
                shf = ret.get();
            }
            
            GiftSender::steal(shf);
            
            //To do
            
            return ret;
        }
    }
} // namespace npProxy


#endif //GIFTSENDERCONCRETE_H__
